/*
 * Copyright 2013 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package cn.liuxb.spa;

import javax.annotation.PostConstruct;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestDecoder;
import io.netty.handler.codec.http.HttpResponseEncoder;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.SelfSignedCertificate;

@Component
public class SpaServerInitializer extends ChannelInitializer<SocketChannel> {

	static final boolean SSL = System.getProperty("ssl") != null;
    private SslContext sslCtx;
    
    @Autowired
    NettyHttpHandler httpHandler;

    @PostConstruct
    public void init() throws Exception {
    	 // Configure SSL.
        if (SSL) {
            SelfSignedCertificate ssc = new SelfSignedCertificate();
            sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
        } else {
            sslCtx = null;
        }
    }

    @Override
    public void initChannel(SocketChannel ch) {
    	System.out.println(this);
        ChannelPipeline ph = ch.pipeline();
        if (sslCtx != null) {
            ph.addLast(sslCtx.newHandler(ch.alloc()));
        }
        ph.addLast("encoder",new HttpResponseEncoder());
        ph.addLast("decoder",new HttpRequestDecoder());
        ph.addLast("aggregator", new HttpObjectAggregator(10*1024*1024));//把单个http请求转为FullHttpReuest或FullHttpResponse
        ph.addLast("handler", httpHandler);// 服务端业务逻辑
    }
}
